Contact NowR680 professional electric concrete floor grinding polishing machine,polisherR680 concrete floor grinding machine concrete polishing machine is a large-scale integrated grinding and polishing machine that uses all gear rotation mode and high-power motors, making the machine reliable and its grind forceful. With 4 head grinder you get an up 30% more effective grinding and stripping and obviously a more level floor. In addition, a machine with four grinding heads runs smoother which makes the handling more ergonomic and highly productive machine yet easy to handle and operate.Read More